CN113239514B - Selection method and system of elevator guide cover and storage medium - Google Patents
Selection method and system of elevator guide cover and storage medium Download PDFInfo
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- CN113239514B CN113239514B CN202110375727.8A CN202110375727A CN113239514B CN 113239514 B CN113239514 B CN 113239514B CN 202110375727 A CN202110375727 A CN 202110375727A CN 113239514 B CN113239514 B CN 113239514B
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- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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- G06F30/20—Design optimisation, verification or simulation
- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
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- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/10—Noise analysis or noise optimisation
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- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
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Abstract
The invention discloses a method, a system and a storage medium for selecting an elevator air guide sleeve, wherein the method comprises the following steps: acquiring characteristic information of a car and limit information of the car; constructing a plurality of types of air guide sleeve models according to the characteristic information and the limiting information; constructing a simulation model according to the plurality of types of the air guide sleeve models and the characteristic information, wherein the simulation model comprises a car model, a counterweight model corresponding to the car model and the air guide sleeve model; simulating the simulation model in a preset flow field region to obtain a simulation calculation result; and determining a target air guide sleeve model of the car from the plurality of types of air guide sleeve models according to the simulation calculation result. The invention can effectively select the proper air guide sleeve for the target elevator without physically testing the effect of the air guide sleeve. The invention can be widely applied to the technical field of analog simulation.
Description
Technical Field
The invention relates to the technical field of analog simulation, in particular to a method and a system for selecting an elevator air guide sleeve and a storage medium.
Background
With the development of elevator technology, the running speed of elevators is also faster and faster. When the elevator is running at a fast speed in a narrow hoistway, the stability of the surrounding flow field is affected. Turbulence phenomena become more and more pronounced as the velocity of the surrounding flow field increases, such as noise generation and even unstable vibration of the elevator. In this situation, one current solution is to install a flow guiding cover outside the elevator car to perform a flow guiding function on the surrounding flow field, so as to reduce air resistance and reduce noise. However, differently shaped fairings have different fairing capabilities. The opposite effect may be achieved when the shape of the guide vane is not properly selected, for example, airflow eddies are very likely to occur near the four sides of a rectangular guide vane during elevator movement, thereby creating noise. At present, the problem of cost is considered, and the guide cover and the elevator cannot be tested before application, so that a proper guide cover cannot be effectively selected for a target elevator.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method, a system and a storage medium for selecting an elevator air guide sleeve, which can select a proper elevator air guide sleeve at low cost.
The first aspect of the embodiment of the invention provides a method for selecting an elevator air guide sleeve, which comprises the following steps:
acquiring characteristic information of a car and limit information of the car;
constructing a plurality of types of air guide sleeve models according to the characteristic information and the limiting information;
constructing a simulation model according to the plurality of types of the air guide sleeve models and the characteristic information, wherein the simulation model comprises a car model, a counterweight model corresponding to the car model and the air guide sleeve model;
simulating the simulation model in a preset flow field region to obtain a simulation calculation result;
and determining a target air guide sleeve model of the car from the plurality of types of air guide sleeve models according to the simulation calculation result.
The method for selecting the elevator air guide sleeve has the following beneficial effects:
according to the method, a plurality of types of air guide sleeve models are built according to the acquired characteristic information and the limiting information of the car, then the simulation models including the car model, the counterweight model corresponding to the car model and the air guide sleeve model are built according to the plurality of types of air guide sleeve models and the characteristic information, then the simulation models are simulated in the preset flow field area to obtain the simulation calculation result, and the target air guide sleeve model of the car is determined from the plurality of types of air guide sleeve models according to the simulation result, so that the effect of the air guide sleeve does not need to be tested physically, and the proper air guide sleeve can be effectively selected for the target elevator.
Optionally, the obtaining of the preset flow field region includes:
acquiring actual operation area information of the car;
constructing a simulation operation area model according to the actual operation area information;
and carrying out gridding treatment on the simulation operation area model to obtain a preset flow field area.
Optionally, before the simulation of the simulation model, the method further includes the following steps:
and acquiring a configuration file, wherein the configuration file comprises a preset speed and a preset running direction of the simulation model in the simulation process.
Optionally, the simulating the simulation model includes:
obtaining a turbulence model and a noise model;
and calling the configuration file to simulate the simulation model by adopting the turbulence model and the noise model.
Optionally, the turbulence model is a k-epsilon turbulence model; the noise model is an FW-H noise model.
Optionally, the determining a target pod model of the car from the plurality of types of pod models according to the simulation calculation result includes:
creating a pressure cloud chart, a velocity vector chart and a noise distribution chart according to the simulation calculation result;
and determining a target air guide sleeve model of the car from the plurality of air guide sleeve models according to the pressure cloud chart, the speed vector chart and the noise distribution chart.
Optionally, the number of pod models includes a rectangular pod, a circular pod, a parabolic pod, and an elliptical pod.
A second aspect of an embodiment of the present invention provides a system for selecting an elevator airflow guide sleeve, including:
the system comprises an acquisition module, a judgment module and a control module, wherein the acquisition module is used for acquiring characteristic information of a car and limit information of the car;
the first construction module is used for constructing a plurality of types of air guide sleeve models according to the characteristic information and the limiting information;
the second construction module is used for constructing a simulation model according to the plurality of types of the air guide sleeve models and the characteristic information, and the simulation model comprises a car model, a counterweight model corresponding to the car model and the air guide sleeve model;
the simulation module is used for simulating the simulation model in a preset flow field region to obtain a simulation calculation result;
and the determining module is used for determining a target air guide sleeve model of the car from the plurality of types of air guide sleeve models according to the simulation calculation result.
A third aspect of an embodiment of the present invention provides a system for selecting an elevator airflow guide cover, including:
at least one memory for storing a program;
at least one processor configured to load the program to perform the method for selecting an elevator pod of the embodiment of the first aspect.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium having stored therein a processor-executable program, which when executed by a processor, is configured to perform the method for selecting an elevator pod as provided in embodiments of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
fig. 1 is a flow chart of a method of selecting an elevator pod according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the development of elevator equipment technology, elevator applications are becoming more and more widespread. In the running process of the elevator, the elevator is positioned in a relatively closed channel, so that the stability of a surrounding flow field can be influenced to a certain extent in the rapid running process of the elevator. When the surrounding flow field is in an unstable state, the stability of the running of the elevator car is correspondingly influenced. Therefore, in order to reduce the influence of the surrounding flow field on the running process of the car, a flow guide cover can be arranged on the car, wherein the flow guide cover is used for reducing the air resistance of the car in the high-speed running process. The choice of shape of the air guide sleeve is currently made by the skilled person on the basis of practical experience, so that it may happen that the selected air guide sleeve does not function, or even does so in the opposite sense, e.g. a rectangular air guide sleeve, which during movement of the elevator is very likely to generate air flow eddies near the four sides of the rectangular air guide sleeve, thus generating noise. It is assumed that the car and the matching pod are tested before the car and pod actually work. In a single test procedure, a tester is required to collect data, analyze the data, and finally obtain a result. It can be seen that for multiple cars and matching fairings, the tester needs to repeat the above steps, resulting in a very heavy workload. Moreover, the cost required to test each car and the matching pod is significant.
Based on the above, the embodiment of the invention provides a selection method of an elevator air guide sleeve, which can be applied to a server and a background processor of a simulation platform. The simulation software of the simulation platform can be installed in a user equipment terminal, such as a computer, an ipad and other equipment. The simulation software is used for operating a simulation technology, the simulation technology refers to a method for establishing a simulation model and carrying out a simulation experiment, and two major categories can be classified: a simulation method of a continuous system and a simulation method of a discrete event system.
In the application process, as shown in fig. 1, the present embodiment includes steps S11 to S15:
and S11, acquiring characteristic information of the car and limit information of the car.
In the embodiment of the application, in order to improve the efficiency, the car is an elevator car needing to be matched with the air guide sleeve, and for the car not needing to be matched with the air guide sleeve, characteristic information and limitation information of the car do not need to be acquired. The characteristic information includes size information and shape information of the car. The limit information is information that affects the operation of the car during the operation of the car, for example, the weight of the car, the traction force of the traction device of the car, and the like.
And S12, constructing a plurality of types of air guide sleeve models according to the characteristic information and the limiting information.
In the embodiment of the present application, in order to cope with different car structures and spatial structures of car operation, the type of the fairwater model may be provided as a rectangular fairwater, a circular fairwater, a parabolic fairwater and an elliptical fairwater, but is not limited to the above-described structure types.
And S13, constructing a simulation model according to the plurality of types of air guide sleeve models and the characteristic information. The simulation model comprises a car model, a counterweight model corresponding to the car model and a guide cover model.
In the embodiment of the application, different types of air guide sleeve models are adapted according to the characteristic information of the car, and different simulation models are combined. In order to improve the simulation effect of the simulation model, a counterweight model is constructed in the simulation model. Wherein the counterweight is a component of the elevator traction system and functions to reduce the power of the traction motor and the torque of the traction sheave and the worm wheel. The structure of the counterweight is not fixed, but no matter what form, four guide shoes are arranged at four corners of the counterweight so as to ensure that the counterweight vertically runs along a counterweight guide rail when the elevator runs. The counterweight model is a virtual model constructed based on the structure of the counterweight.
And S14, simulating the simulation model in the preset flow field region to obtain a simulation calculation result.
In the embodiment of the application, the actual operation area information of the car is obtained, the simulation operation area model is constructed according to the actual operation area information, and then the simulation operation area model is subjected to gridding processing to obtain the preset flow field area, wherein the preset flow field area is a dynamic gridding flow field area. The actual operation area information refers to information in an operation space of the target car, and includes actual flow field information and well pinch environment information. In order to improve the authenticity of a simulation result, before the simulation model is simulated, a configuration file comprising the preset speed and the preset running direction of the simulation model in the simulation process is obtained. The configuration file may be a profile file, and the profile file is capable of directly setting the running speed and the running direction of the car model in the simulation environment during simulation running.
And after the setting is finished, simulating the simulation model. Specifically, a turbulence model and a noise model can be adopted to define a simulation environment, and a profile file is called to simulate the simulation model, so that a simulation result is closer to an actual situation. The turbulence model can be a k-epsilon turbulence model, a zero equation model, an equation model and the like. The noise model may be selected from FW-H noise models. The turbulence models and noise models described above each include, but are not limited to, the models listed above.
In the simulation process, the simulation model can be converted into a rectangular model, so that the calculation efficiency is improved.
And S15, determining a target air guide sleeve model of the car from the air guide sleeve models according to the simulation calculation result.
In the embodiment of the application, the pressure cloud chart, the velocity vector chart and the noise distribution chart are created according to the simulation calculation result, so that the subsequent data can be acquired conveniently. And then determining a target air guide sleeve model of the car from the air guide sleeve models in a plurality of types through the data in the pressure cloud chart, the velocity vector chart and the noise distribution chart. Specifically, the target air guide sleeve model is a model with small pressure, less vortex and less noise of a flow field around the car, and the optimal air guide sleeve shape is selected by comprehensively comparing the pressure, the vortex and the noise.
According to the explanation, the embodiment does not need a user to adopt a solid structure to test each air guide sleeve and each lift car, so that the workload of workers is reduced, namely, the effect of the air guide sleeve does not need to be tested physically, and a proper air guide sleeve can be effectively selected for the target elevator.
The embodiment of the invention provides a system for selecting an elevator air guide sleeve, which comprises:
the obtaining module is used for obtaining the characteristic information of the lift car and the limit information of the lift car;
the first construction module is used for constructing a plurality of types of air guide sleeve models according to the characteristic information and the limiting information;
the second construction module is used for constructing a simulation model according to the plurality of types of air guide sleeve models and the characteristic information, wherein the simulation model comprises a car model, a counterweight model corresponding to the car model and the air guide sleeve model;
the simulation module is used for simulating the simulation model in a preset flow field region to obtain a simulation calculation result;
and the determining module is used for determining a target air guide sleeve model of the car from the plurality of types of air guide sleeve models according to the simulation calculation result.
The content of the embodiment of the method of the invention is all applicable to the embodiment of the system, the function of the embodiment of the system is the same as the embodiment of the method, and the beneficial effect achieved by the embodiment of the system is the same as the beneficial effect achieved by the method.
The embodiment of the invention provides a system for selecting an elevator air guide sleeve, which comprises:
at least one memory for storing a program;
at least one processor configured to load a program to perform the method for selecting an elevator pod of fig. 1.
The contents of the embodiment of the method of the invention are all applicable to the embodiment of the system, the functions specifically realized by the embodiment of the system are the same as those of the embodiment of the method, and the beneficial effects achieved by the embodiment of the system are also the same as those achieved by the method.
Embodiments of the present invention provide a computer-readable storage medium having stored therein a processor-executable program, which when executed by a processor, is configured to perform a method of selecting an elevator pod as shown in fig. 1.
Furthermore, the embodiment of the invention also discloses a computer program product or a computer program, which comprises computer instructions, and the computer instructions are stored in a computer readable storage medium. The computer instructions may be read by a processor of a computer device from a computer-readable storage medium, and executed by the processor to cause the computer device to perform the method illustrated in fig. 1.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (9)
1. A method of selecting an elevator pod comprising the steps of:
acquiring characteristic information of a car and limit information of the car; the characteristic information comprises size information and shape information of the car, the limit information is used for representing information influencing the running of the car in the running process of the car, and the limit information comprises the weight of the car and the traction force of a traction device of the car;
constructing a plurality of types of air guide sleeve models according to the characteristic information and the limiting information;
constructing a simulation model according to the plurality of types of the air guide sleeve models and the characteristic information, wherein the simulation model comprises a car model, a counterweight model corresponding to the car model and the air guide sleeve model; in the counterweight model, four guide shoes are arranged at four corners of the counterweight;
simulating the simulation model in a preset flow field region to obtain a simulation calculation result;
determining a target air guide sleeve model of the car from the plurality of types of air guide sleeve models according to the simulation calculation result;
wherein, the step of obtaining the preset flow field area comprises:
acquiring actual operation area information of the car;
constructing a simulation operation area model according to the actual operation area information;
and carrying out gridding treatment on the simulation operation area model to obtain a preset flow field area.
2. The method of selecting an elevator pod of claim 1, further comprising, prior to simulating the simulation model, the steps of:
and acquiring a configuration file, wherein the configuration file comprises a preset speed and a preset running direction of the simulation model in the simulation process.
3. The method of selecting an elevator pod of claim 2, wherein simulating the simulation model comprises:
obtaining a turbulence model and a noise model;
and calling the configuration file to simulate the simulation model by adopting the turbulence model and the noise model.
4. The method of selecting an elevator air guide sleeve according to claim 3, wherein the turbulence model is a k-epsilon turbulence model; the noise model is a FW-H noise model.
5. The method of claim 1, wherein determining the target pod model for the car from the plurality of pod models based on the simulation calculations comprises:
creating a pressure cloud chart, a velocity vector chart and a noise distribution chart according to the simulation calculation result;
determining a target pod model of the car from the plurality of pod-like models based on the pressure cloud map, the velocity vector map, and the noise profile.
6. The method of selecting an elevator pod of claim 1 wherein the plurality of pod models comprises a rectangular pod, a circular pod, a parabolic pod, and an elliptical pod.
7. An elevator pod selection system, comprising:
the elevator car restriction information acquisition module is used for acquiring characteristic information of an elevator car and restriction information of the elevator car; the characteristic information comprises size information and shape information of the car, the limit information is used for representing information influencing the running of the car in the running process of the car, and the limit information comprises the weight of the car and the traction force of a traction device of the car;
the first construction module is used for constructing a plurality of types of air guide sleeve models according to the characteristic information and the limiting information;
the second construction module is used for constructing a simulation model according to the plurality of types of the air guide sleeve models and the characteristic information, wherein the simulation model comprises a car model, a counterweight model corresponding to the car model and the air guide sleeve model; in the counterweight model, four guide shoes are arranged at four corners of the counterweight;
the simulation module is used for simulating the simulation model in a preset flow field region to obtain a simulation calculation result;
the determining module is used for determining a target air guide sleeve model of the car from the plurality of types of air guide sleeve models according to the simulation calculation result;
wherein the simulation module is further specifically configured to:
acquiring actual operation area information of the car;
constructing a simulation operation area model according to the actual operation area information;
and carrying out gridding treatment on the simulation operation area model to obtain a preset flow field area.
8. An elevator air guide sleeve selection system, comprising:
at least one memory for storing a program;
at least one processor configured to load the program to perform the method of selecting an elevator pod of any of claims 1-6.
9. A computer readable storage medium having stored therein a processor executable program, wherein the processor executable program when executed by a processor is for performing the method of selecting an elevator pod of any of claims 1-6.
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